STARRTWSPECIAL (ASK9)S/CO–Star AllianceRTW Fare Rule Version96/ Status7JUN17Page10of1216/PEPENALTIESNOTE1:ANY STAR CARRIER SHALL RE-ISSUE/RE-BOOK ANY RTW PNR EXCEPT WHENNOT TECHNICALLY FEASIBLE.THEN PLEASE REFER PASSENGER TOTICKETING CARRIER OR SALES AGENT. CHANGES REQUIRING REBOOKINGOR REROUTING OF THE FLIGHTS OF 2 OR MORE OF THE REMAININGCARRIERS OF AN ITINERARY MIGHT NOT BE TECHNICALLY FEASIBLE.NOTE2:WHEN A TOTALLY UNUSED TICKET IS PRESENTED FOR A CHANGE OFJOURNEYAND THE FIRST OUTBOUND SECTOR IS BEING CHANGED,THEFARE FOR THE NEW JOURNEY SHALL BE ASSESED BASED ON THEPREVAILINGFARES APPLICABLE AT THE TIMEREISSUE.IF THE FIRST FLIGHT COUPON IS NOTBEING CHANGED, THEN THE FARE ASPER ORIGINAL TICKET ISSUED WILL BE USED.
CHANGES BEFORE DEPARTURECHANGES TO CARRIERS / FLIGHTS / DATES LEADING TO REBOOKING/REVALIDATION OFANY SECTOR PERMITTED AT NO CHARGE.REROUTING (CHANGES TO TICKETED POINTS)PERMITTED AT A CHARGE OF USD 125 (CHILD/INFANT USD 125) PER TRANSACTION.AFTER DEPARTUREFOR ALLREMAININGSECTORS CHANGES TO CARRIERS / FLIGHTS / DATESLEADING TO REBOOKING/REVALIDATIONPERMITTEDAT NO CHARGECHANGES IN TICKETED POINT / FARE BASIS / FARE AMOUNTLEADING TOREROUTINGPERMITTED AT A CHARGE OF USD 125 USD (CHILD/INFANTUSD125) PERTRANSACTION

And yes, HND/NRT are co-terminals, and it does not matter which one you fly into/out of - with one exception.
Flying into one/out of the other triggers an additional flight " coupon", and since you are limited to 16 coupons
on a ticket - if you are the max this may cause problems.